Characterization of a succinyl-CoA radical-cob(II)alamin spin triplet intermediate in the reaction catalyzed by adenosylcobalamin-dependent methylmalonyl-CoA mutase.

Abstract

The electron paramagnetic resonance (EPR) spectrum of an intermediate freeze trapped during the steady state of the reaction catalyzed by the adenosylcobalamin (AdoCbl)-dependent enzyme, methylmalonyl-CoA mutase, has been studied. The EPR spectrum is that of a hybrid triplet spin system created as a result of strong electron-electron spin coupling between… (More)

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